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In scientific visualization a tensor glyph is an object that can visualize all or most of the nine degrees of freedom, such as acceleration, twist, or shear – of a ${\displaystyle 3\times 3}$ matrix. It is used for tensor field visualization, where a data-matrix is available at every point in the grid. "Glyphs, or icons, depict multiple data values by mapping them onto the shape, size, orientation, and surface appearance of a base geometric primitive."^[1] Tensor glyphs are a particular case of multivariate data glyphs.

There are certain types of glyphs that are commonly used:

• Ellipsoid
• Cuboid
• Cylindrical
• Superquadrics

According to Thomas Schultz and Gordon Kindlmann, specific types of tensor fields "play a central role in scientific and biomedical studies as well as in image analysis and feature-extraction methods."^[2]

• Superquadric Tensor Glyphs (Images and Examples) Archived 2012-02-04 at the Wayback Machine
• Bertin, Jacques (2010) [1967]. Semiology of Graphics. ISBN 978-1589482616.

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